blob: 76a8288118bfc8c0d12fcb087825084a84d9d753 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import abc
import six
import yardstick.common.utils as utils
@six.add_metaclass(abc.ABCMeta)
class Context(object):
'''Class that represents a context in the logical model'''
list = []
def __init__(self):
Context.list.append(self)
@abc.abstractmethod
def init(self, attrs):
"Initiate context."
@staticmethod
def get_cls(context_type):
'''Return class of specified type.'''
for context in utils.itersubclasses(Context):
if context_type == context.__context_type__:
return context
raise RuntimeError("No such context_type %s" % context_type)
@staticmethod
def get(context_type):
"""Returns instance of a context for context type.
"""
return Context.get_cls(context_type)()
@abc.abstractmethod
def deploy(self):
'''Deploy context.'''
@abc.abstractmethod
def undeploy(self):
'''Undeploy context.'''
@abc.abstractmethod
def _get_server(self, attr_name):
'''get server info by name from context
'''
@staticmethod
def get_server(attr_name):
'''lookup server info by name from context
attr_name: either a name for a server created by yardstick or a dict
with attribute name mapping when using external heat templates
'''
server = None
for context in Context.list:
server = context._get_server(attr_name)
if server is not None:
break
if server is None:
raise ValueError("context not found for server '%r'" %
attr_name)
return server
|
